Hose-coupling.



No. 815,995. JPATENTED'MARI 27, 1905..

J. WILLIAMSQN & H. OBRIBN.

HOSE COUPLING.

APPLIUATION FILED MARJ. 1-905.

UNITED sTATEs PATENT oEEIoE.

I speesca'tin of Letters' Patent.

Patented March 27, 1906.

Application led March l5, 1905. Serial No. 250,274.

To @ZKM/hom t may concern,.- l Be it known that we, JAMES WILLIAMSON and HUGE OBRIEN, citizensof the United States of America', and residents of Chicago ,i in the county of Cook and State of Illinois,

have invented certain new and useful Improvements in Hose-Couplings, of which the following is a specification. This invention relates `t'ol hose-couplings Io and its mainobject is to provide adevice of Vthis class which will require but little Ina-,jt chine-work in its construction, which will bei simple, eiiicient, and inexpensive, and whichl will permit of quickly and securely connect- I5 ing together the adjacent ends of s ectlons of` hose, insuring a thoroughly water-tlght joint. This object is accomplished by the device shown in the accompanying drawings, in whichy y Figure 1 is a plan view of ahose-coupling constructed according to our invention, the hose being omitted from one end to show the structure of the nipple. Fig. 2 is a side elevation of the same. Fig. 3 is a longitudinal section of the same, the dotted lines indicat. ing the osition of the clamp lwhenV the cam 1s release topermit the link to be thrown up jfordisconnection of the nipples. Fig. Lis an `end elevation of one set of the clamp-jaws whichsecure the hoseupon the nipples, showing the ring which connects said jaws. Fig. 5 is aside elevation l0f one of the clamp-jaws removed from the'ring. Y

, In the form shownin the drawings our coupling consists of two tubularnipples `1 and 2, fitting together endwise of each other land provided with means `for insurmg a water-tight joint between the adjacent ends -of said nipples andbetween each nipple and its respective hose-section.

The nipple 1 is reduced in diameter at 3 to` form a part telescoping within thev counterbored end 4 of the nipple 2. The joint between the nipples is packed by a gasket 5,

which is slipped over the reduced'part 3 of the nipple 1. The opposite ends 6 ofthe nipples are also reduced' in diameter somewhat and Vare serrated by a series of annular grooves and ridges. /These parts. 6-iit within 5o kthe interiorofthe hose. 7, and the/hose 1s securely clamped against'the parts-6 by. means of a plurality of jaws 8, ywhich are disposed Nlongitudinally of the lnipple and Vconnected V'together at their inner ends by" means vofa E tion.

collar 9. The collar 9 is formed to fit the 5 part 1,0 ofthe nipple at the inner end of the serrated part 6 and is preferably made, sepal rate from the nipple for-convenience and for a the purpose .of reducing the cost of construc- 60 The nipples 1 and 2 are secured together by means -of a link 11, which extends diagonally across the joint between the nipples. The side parts of the link are fiat, so as to lie closely to the periphery of the ni ples, and 6 the end parts 12 and 13 are -parallel to each s other and engage sockets in opposite nipples. The part 12 is permanently held in pivotal engagement with its socket by a lug 14, which is bent around the part 12 when the d evice is first assembled. A' cam 15 is eccentrically mounted on thepart 13 of the link and is provided with an operating-lever 16. The cam only partly encircles the part 13 of the link, and one side part of the link is contracted at 11 to permit the link and cam to be slid apart when turned to certain relative positions, as in the well-known joints of link belting.y The outer surface of the cam 15 fits the socket in the nipple 2. This socket is formed partly in the wall of the nipple. and partly on the face of a lug 20; The cam 15 is so formed that when the lever 16 is in the Vposition shown'in Fig. 2 the center of the part 13 will lie in such relation-to the line of 8 5 ressure that the pull on the link tends tol liold the lever in the position shown in Fig. 2. When the lever 16 is movedto the position which is indicated by dotted lines' in Fig. 8, the cam 15, through its eccentric connection with the link, .assumes a position which will permit it to clear the lug 20 and allow the link Vto be swung in the direction of the arrow 21.

The nipples may now be freely separated.

The-jaws 8 are disposed longitudinally of 95 the nipples and are in the form of longitudinal sectors havingl their inner surface of cylindrical formV to fit against the outer surface of the hose-and being wedge-shaped along their middle line in thel direction of theirflength, the thicker end. of the wedge being disposed toward the joint between the thimbles. The longitudinal edges of the jaws 8 are of zigzag formation, so that the edges o f adjacent jaws will interlap with each other, as is seen in Fig. Each -j aw 8 has a central .ridge 22, .which 1is Vthreaded `and for-ms" a threaded wedge,

meshing", with a correspondingly -Y threaded IOO collar 17, which encircles and meshes .with all of the jaws. Each jaw is slotted at 18 at the point of its pivotal connection with the ring 9, so as to permit both ends of the jaw to move radially inward under the wedging action of the ring 17 upon the threaded ridges 22. The ring 17 is provided with lugs 19 for engaging a Spanner-wrench.

The operation of the device shown `is asfol-` lows: To connect the end of a hose-section to one of the nipples, the collar 9 is first slipped over the end of the nipple. `The ring 17 is then slipped over the end of the hose, andthe nipple is inserted into the end of the fhose. The jaws 8 are then closed down over the hose, and the ring 17 is screwedV upon the threaded wedges 22 until a thoroughly watertight joint is had. The interlapping side edges of the jaws 8 cause the hose to be compressed against the nipple in such manner as to prevent the possibility of said hose being puckered between the adjacent side edges of the jaws and forming a channel for leakage along the joint between the nipple and hose.

`To make the connection between the two nipples, the end 3 of the nipple 1 is inserted into the end 4 of the nipple 2. The link 1 1 is then closed down into the socket in the nipple 2, whereupon the closing down-of `the lever 16 causes the cam 1.5 to exert an endwise pressure upon the link 11, drawing the two nipples toward each other and tightly compressing the gasket 5 between the opposed shoulders of the nipples. The cam 15 and the coacting surface of the socket are so formed that when the lever 16 is in its closed position, as in Fig. 2, the resultant pressure between the cam and socket tend to resist the lifting of the lever 16. This arrangement of the bearing-surfaces effectually prevents the accidental separation of the nipples. Inthe act of lifting the lever 16 to disconnect the nipples ythe position of the resultant pressure is shifted past the dead central positionof the cam 15. When the lever 16 is movedto the position shown dotted in Fig. 3, the link 11 is free to swing away clear of the lug 20. The operations of connecting and disconnecting the nipples are so simple that they may be made with great rapidity. l

It will be seen that numerous details of the constructionv shown may be altered without departing from the spirit of` our invention.

What we claim as our invention, and desire to secure by Letters Patent, is.-n l

11. In a coupling of the class described, the combination of a thimble for entering one end of a hose; a .plurality of pivotally-connected jaws mounted on said thimbleand adapted to lie longitudinally of thethimhle and against the exterior surface offthehose,

. said aws having inner concave` ,surfaces fitting the hose and having their longitudinal side edges formed to interlap with each other; and means for forcing said jaws inwardly for clamping the hose against the thimble, substantially as described.

V2. In a coupling of the class described, the combination of a thimble for entering one .end of a hose; a plurality of pivotally-conwrnected jaws mounted on said thimble and adapted to lie longitudinally of the thimble and against the exterior surface ofthe hose,

lsaid jaws havinginner concave surfaces fitting the hose and havin T their longitudinal side edges formed to interlap with each ether, and each of said aws being wedge-shapedin longitudinal section 5 and a collar snrroui'iding said jaws and adapted to force the ysame inwardly for clamping the hosey against the thimble, substantially asdescribed.4

3. In a coupling of the class described, the combination of a thimble for entering one end of a hose; a plurality of pivotally-connected jaws mounted on said thimble and adapted to lie longitudinally of the thimble and against the exteriorsurface of the hose, said jaws having inner concave surfaces iitting the hose and having their longitudinal side edges formed to interlap with each other, and each of said jaws lbeing wedge-shaped in longitudinal section; and a collar surrounding said jaws and having threaded engagement therewith, whereby said` collar when rotated in one directionwill move toward the thicker end of said jaws and force said jaw inwardly for clamping the hose against the thimble, substantially as described.

4. In a coupling of the class described, the combination of a thimble for entering one end of a hose; a ring-shaped member loosely mounted on said thimble and having thereon a plurality of pairs of radially-disposed lugs; a plurality of jaws each respectively pivoted to one of said pairs of lugs and adapted to lie longitudinally of the thimble and `against the exterior surface of the hose, said jaws having inner concave surfaces fitting the hose and .having their longitudinal side edges formed ,to4 interlap with each other, said jaws being wedge shaped in longitudinal section and thicker toward their pivoted ends, and having a threaded outer surface and a collar fitting around said jaws and having a threaded linterior, surface adapted to coact with the threads'on said jaws for forcing said jaws inwardly'to clamp-the hose against said nipple, substantially as described.

5. In a coupling of the class described, the combination of a pair of thimbles havingsep- V arable interlocking endwise engagement with each other, and each having a partadapted ;to enter the end of a1 hose each of said thim- ,blesr havingrnounted thereon a plurality of pivotally-connected jaws adapted to lie longitudinally of such thimble and against the IOO IlO

ais-15,995

exterior surface of the hose, said j avvs having Signed at Chicago this 11th day of March,

inner concave surfaces fitting the hose and 1905.

having their longitudinal side edges formed JAMES WILLIAMSON. to interlap With each other; and means for HUGH OBRIEN.

5 forcing said jaws inwardly for clampin the I Witnesses:

hose against the thimbles, substantial y as l WM. R. RUMMLER,l

described. RUDoWv RUMMLER.l 

